Matricaria chamomilla L. - a mountain tea is an old national tea, which is used against cold. Matricaria chamomilla L. contains 0.3% of essential oil isolated from dry plant material picked up while blossoms in 1998 on the location Doljevac. By the method of gas chromatography 39 components are registrated from essential oil and 2 components are identified: cirtal 1.72%; timol 0.11% of total mass of the components of essential oil. Essential oil contain phitocid substances, which have microbacid effect with different intensity on bacteria fungus and mildew. Essential oil of Matricaria chamomilla L. while diluted 1:20 and 1:50 reacts on bacteria Escherichia coli 95, Staphylococcus aureus 6633, Bacillus subtilis 841. Besides essential oil Matricaria chamomilla L. is rich in biogen microelements which are necessary for human health. By the method of AAS the following results for microelements are gained: Fe (59.42 mg/kg), Zn (24.44 mg/kg), Cu (5.87 mg/kg) Se (0.006 mg/kg) Mn (33.85 mg/kg). Found microelements increase the healing effects of this herb.